Explanation of Names
Exema canadensis Pierce, 1940
Identification
Emargination of eyes black, not yellow.
(2)
"Shiny black with yellowish markings; male with antennal scape and longitudinal bar next to each eye transversely connected to central spot that merges with triangular frontal spot, yellow; frontal slope black; all tibiae with subbasal and subapical yellow rings; front femora with basal yellow ring, female similar with facial yellow markings reduced to spots; pronotum with large elliptical punctures, largest posteriorly; elytra coarsely punctate with prominent umbone and large tubercules."
(2)Habitat
Beaten and swept from species of
Solidago, Corylus, Salix, Cornus, elm, chokecherry, blackberry, ragweed, and others.
(2)Print References
Karren, J. 1966. A revision of the genus
Exema of America north of Mexico (Chrysomelidae, Coleoptera). University of Kansas Science Bulletin 46: 647–695.
(4)
Pierce, W.D. 1940. The fauna and flora of the El Segundo sand dunes. II. The dune case-bearer beetles of the genus Exema with review of the genus. Bulletin, Southern California Academy of Sciences 39: 6-27.
